<!DOCTYPE html>
<html>
 <head>
  <meta charset=UTF-8>
  <title></title>
 </head>

 <body>
  <header style="height:80px;background-color:#ffaaaa">
	页头：LOGO 欢迎语
  </header>
  <nav style="height:30px;background-color:#aaffaa">
	导航：首页|新闻|动态|招聘
  </nav>
  <section style="width:80%;height:300px;background-color:#aaaaff;float:left">
	部分/章节：主体内容
  </section>
  <aside style="width:20%;height:300px;background-color:#ffaaff;float:left">
	侧边栏
  </aside>
  <footer style="height:100px;background-color:#aaffff;clear:left">
	页尾：版权声明
  </footer>
 </body>
</html>
